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<a class="el" href="dir_897b6a2d7bab147dd1db58381aad3984.html">src</a> » <a class="el" href="dir_832905b1f7f5feaf61a306b40c0ac817.html">sys</a> » <a class="el" href="dir_7efffd2b1fae7bb6f2aa85845c863494.html">kernel</a></div>
<h1>systemtask.c</h1><a href="systemtask_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*****************************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (c) 2002-2004 The UbixOS Project</span>
<a name="l00003"></a>00003 <span class="comment"> All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> Redistribution and use in source and binary forms, with or without modification, are</span>
<a name="l00006"></a>00006 <span class="comment"> permitted provided that the following conditions are met:</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment"> Redistributions of source code must retain the above copyright notice, this list of</span>
<a name="l00009"></a>00009 <span class="comment"> conditions, the following disclaimer and the list of authors. Redistributions in binary</span>
<a name="l00010"></a>00010 <span class="comment"> form must reproduce the above copyright notice, this list of conditions, the following</span>
<a name="l00011"></a>00011 <span class="comment"> disclaimer and the list of authors in the documentation and/or other materials provided</span>
<a name="l00012"></a>00012 <span class="comment"> with the distribution. Neither the name of the UbixOS Project nor the names of its</span>
<a name="l00013"></a>00013 <span class="comment"> contributors may be used to endorse or promote products derived from this software</span>
<a name="l00014"></a>00014 <span class="comment"> without specific prior written permission.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY</span>
<a name="l00017"></a>00017 <span class="comment"> EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span>
<a name="l00018"></a>00018 <span class="comment"> MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL</span>
<a name="l00019"></a>00019 <span class="comment"> THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00020"></a>00020 <span class="comment"> SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span>
<a name="l00021"></a>00021 <span class="comment"> OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)</span>
<a name="l00022"></a>00022 <span class="comment"> HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR</span>
<a name="l00023"></a>00023 <span class="comment"> TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00024"></a>00024 <span class="comment"> SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment"> $Id: systemtask_8c-source.html 88 2016-01-12 00:11:29Z reddawg $</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">*****************************************************************************************/</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#include <<a class="code" href="systemtask_8h.html">ubixos/systemtask.h</a>></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <<a class="code" href="kpanic_8h.html">ubixos/kpanic.h</a>></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <<a class="code" href="exec_8h.html">ubixos/exec.h</a>></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <<a class="code" href="tty_8h.html">ubixos/tty.h</a>></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <<a class="code" href="sched_8h.html">ubixos/sched.h</a>></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <<a class="code" href="vitals_8h.html">ubixos/vitals.h</a>></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <<a class="code" href="kmalloc_8h.html">lib/kmalloc.h</a>></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <<a class="code" href="kprintf_8h.html">lib/kprintf.h</a>></span>
<a name="l00038"></a>00038 <span class="preprocessor">#include <<a class="code" href="bioscall_8h.html">lib/bioscall.h</a>></span>
<a name="l00039"></a>00039 <span class="preprocessor">#include <<a class="code" href="sde_8h.html">sde/sde.h</a>></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include <<a class="code" href="io_8h.html">sys/io.h</a>></span>
<a name="l00041"></a>00041 <span class="preprocessor">#include <<a class="code" href="vmm_8h.html">vmm/vmm.h</a>></span>
<a name="l00042"></a>00042 <span class="preprocessor">#include <<a class="code" href="mpi_8h.html">mpi/mpi.h</a>></span>
<a name="l00043"></a>00043 <span class="preprocessor">#include <<a class="code" href="string_8h.html">string.h</a>></span>
<a name="l00044"></a>00044
<a name="l00045"></a><a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">00045</a> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *<a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a> = (<span class="keywordtype">char</span> *)0xB8000;
<a name="l00046"></a>00046
<a name="l00047"></a>00047
<a name="l00048"></a><a class="code" href="systemtask_8c.html#c7cc6a806237f8657fcdce169319fd7f">00048</a> <span class="keywordtype">void</span> <a class="code" href="systemtask_8h.html#c7cc6a806237f8657fcdce169319fd7f">systemTask</a>() {
<a name="l00049"></a>00049 <a class="code" href="structmpi__message.html">mpi_message_t</a> myMsg;
<a name="l00050"></a>00050 <a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> counter = 0x0;
<a name="l00051"></a>00051 <span class="keywordtype">int</span> i = 0x0;
<a name="l00052"></a>00052 <span class="keywordtype">int</span> *x = 0x0;
<a name="l00053"></a>00053 <a class="code" href="structtaskStruct.html">kTask_t</a> *tmpTask = 0x0;
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keywordflow">if</span> (<a class="code" href="mpi_8h.html#454c70b9013b47d4e8fd0e45af331c69">mpi_createMbox</a>(<span class="stringliteral">"system"</span>) != 0x0) {
<a name="l00056"></a>00056 <a class="code" href="kpanic_8h.html#db9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"Error: Error creating mailbox: system\n"</span>);
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keywordflow">while</span>(1) {
<a name="l00060"></a>00060 <span class="keywordflow">if</span> (<a class="code" href="mpi_8h.html#22e0e1e2617b3b69b2088c3fd41b7036">mpi_fetchMessage</a>(<span class="stringliteral">"system"</span>,&myMsg) == 0x0) {
<a name="l00061"></a>00061 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"A"</span>);
<a name="l00062"></a>00062 <span class="keywordflow">switch</span>(myMsg.<a class="code" href="structmpi__message.html#218677ef8c9f6457e4008c20c79eed8d">header</a>) {
<a name="l00063"></a>00063 <span class="keywordflow">case</span> 0x69:
<a name="l00064"></a>00064 x = (<span class="keywordtype">int</span> *)&myMsg.<a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>;
<a name="l00065"></a>00065 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Switching to term: [%i][%i]\n"</span>,*x,myMsg.<a class="code" href="structmpi__message.html#ebe00f8f5a01ec8d4f56f8fab455ca8c">pid</a>);
<a name="l00066"></a>00066 <a class="code" href="sched_8h.html#9cf37ade4c1f6184b33014ac2015e8ed">schedFindTask</a>(myMsg.<a class="code" href="structmpi__message.html#ebe00f8f5a01ec8d4f56f8fab455ca8c">pid</a>)-><a class="code" href="structtaskStruct.html#4563a310626d4f4ea885f4532356abb3">term</a> = <a class="code" href="tty_8h.html#4f96ccac7e60296ef496008d8cbed0ff">tty_find</a>(*x);
<a name="l00067"></a>00067 <span class="keywordflow">break</span>;
<a name="l00068"></a>00068 <span class="keywordflow">case</span> 1000:
<a name="l00069"></a>00069 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Restarting the system in 5 seconds\n"</span>);
<a name="l00070"></a>00070 counter = <a class="code" href="vitals_8h.html#67aae71be472453526fc1a0bfbf80280">systemVitals</a>-><a class="code" href="structvitalsStruct.html#d4f37dedcce6dcf9d87e1f01221c5b71">sysUptime</a> + 5;
<a name="l00071"></a>00071 <span class="keywordflow">while</span> (<a class="code" href="vitals_8h.html#67aae71be472453526fc1a0bfbf80280">systemVitals</a>-><a class="code" href="structvitalsStruct.html#d4f37dedcce6dcf9d87e1f01221c5b71">sysUptime</a> < counter) {
<a name="l00072"></a>00072 <a class="code" href="sched_8h.html#08933fe6d593a1c78b9080359f15a0b7">sched_yield</a>();
<a name="l00073"></a>00073 }
<a name="l00074"></a>00074 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Rebooting NOW!!!\n"</span>);
<a name="l00075"></a>00075 <span class="keywordflow">while</span>(<a class="code" href="io_8h.html#77b934268de1b3ecdcf3f275413b3108">inportByte</a>(0x64) & 0x02);
<a name="l00076"></a>00076 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x64, 0xFE);
<a name="l00077"></a>00077 <span class="keywordflow">break</span>;
<a name="l00078"></a>00078 <span class="keywordflow">case</span> 31337:
<a name="l00079"></a>00079 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"system: backdoor opened\n"</span>);
<a name="l00080"></a>00080 <span class="keywordflow">break</span>;
<a name="l00081"></a>00081 <span class="keywordflow">case</span> 0x80:
<a name="l00082"></a>00082 <span class="keywordflow">if</span> (!<a class="code" href="lib_2string_8h.html#6f3dcb20ff11ff9db5904c3cfb61a38c">strcmp</a>(myMsg.<a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>,<span class="stringliteral">"sdeStart"</span>)) {
<a name="l00083"></a>00083 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Starting SDE\n"</span>);
<a name="l00084"></a>00084 <span class="comment">//execThread(sdeThread,(uInt32)(kmalloc(0x2000)+0x2000),0x0);</span>
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!<a class="code" href="lib_2string_8h.html#6f3dcb20ff11ff9db5904c3cfb61a38c">strcmp</a>(myMsg.<a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>,<span class="stringliteral">"freePage"</span>)) {
<a name="l00087"></a>00087 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"kkk Free Pages"</span>);
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!<a class="code" href="lib_2string_8h.html#6f3dcb20ff11ff9db5904c3cfb61a38c">strcmp</a>(myMsg.<a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>,<span class="stringliteral">"sdeStop"</span>)) {
<a name="l00090"></a>00090 <a class="code" href="kprint_8h.html#813254cfe6d658ea82f1dcdf2d927fb8">printOff</a> = 0x0;
<a name="l00091"></a>00091 <a class="code" href="bioscall_8h.html#56a172d2268fc10811a0bb180d7c3f49">biosCall</a>(0<a class="code" href="ap-boot_8S.html#7e98760dd541754f39aa9a0060176908">x10</a>,0x3,0x0,0x0,0x0,0x0,0x0,0x0,0x0);
<a name="l00092"></a>00092 <span class="keywordflow">for</span> (i=0x0;i<100;i++) <span class="keyword">asm</span>(<span class="stringliteral">"hlt"</span>);
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094 <span class="keywordflow">break</span>;
<a name="l00095"></a>00095 <span class="keywordflow">default</span>:
<a name="l00096"></a>00096 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"system: Received message %i:%s\n"</span>,myMsg.<a class="code" href="structmpi__message.html#218677ef8c9f6457e4008c20c79eed8d">header</a>,myMsg.<a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>);
<a name="l00097"></a>00097 <span class="keywordflow">break</span>;
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">/*</span>
<a name="l00102"></a>00102 <span class="comment"> Here we get the next task from the delete task queue </span>
<a name="l00103"></a>00103 <span class="comment"> we first check to see if it has an fd attached for the binary and after that </span>
<a name="l00104"></a>00104 <span class="comment"> we free the pages for the process and then free the task </span>
<a name="l00105"></a>00105 <span class="comment"> */</span>
<a name="l00106"></a>00106 tmpTask = <a class="code" href="sched_8h.html#9608fa7a57005270e866d0a8b3a933f3">sched_getDelTask</a>();
<a name="l00107"></a>00107 <span class="keywordflow">if</span> (tmpTask != 0x0) {
<a name="l00108"></a>00108 <span class="keywordflow">if</span> (tmpTask-><a class="code" href="structtaskStruct.html#7930577bf37a9eb337761a9374def70e">imageFd</a> != 0x0)
<a name="l00109"></a>00109 <a class="code" href="file_8h.html#872c22366b4c63f4bdb10cd3b7980b11">fclose</a>(tmpTask-><a class="code" href="structtaskStruct.html#7930577bf37a9eb337761a9374def70e">imageFd</a>);
<a name="l00110"></a>00110 <a class="code" href="vmm_8h.html#a24b696e386ef97dfe88b9b434c671c6">vmmFreeProcessPages</a>(tmpTask-><a class="code" href="structtaskStruct.html#30966587a60db6b40c8be6c387e11d81">id</a>);
<a name="l00111"></a>00111 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(tmpTask);
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[0] = <a class="code" href="vitals_8h.html#67aae71be472453526fc1a0bfbf80280">systemVitals</a>-><a class="code" href="structvitalsStruct.html#4f8bcc103c132edae3eb7ed47e6ee024">sysTicks</a>;
<a name="l00114"></a>00114 <a class="code" href="sched_8h.html#08933fe6d593a1c78b9080359f15a0b7">sched_yield</a>();
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keywordflow">return</span>;
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="comment">/***</span>
<a name="l00121"></a>00121 <span class="comment"> END</span>
<a name="l00122"></a>00122 <span class="comment"> ***/</span>
<a name="l00123"></a>00123
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